Dear All,

I am trying to assign a key value pair in hash in a while loop. At the end of the loop, when I try to print the hash, it shows me the value as zero.

Also, I have a tab separated file with 6 columns, is it possible to assign the second column as key and fifth column as value pair?

Below i am putting my code:

#!/usr/bin/perl -w                                                    
+          
use strict;
use warnings;

my $ctfile = "ct.tab";
my $dg; my $nt;
my $min = 3; my $max = 19;
my %hash;

open (A, "<", $ctfile) or die "Check the file $!";
while (my $line = <A>)
{
    chomp $line;
    if ($line =~ /dG\s=\s(.*?)\s/)
    {
        $dg = $1;
        next;
    }
    my @temp = split(/\s+/, $line);
    my $snum = $temp[0];
    $nt = $temp[1];
#    $nt =~ s/[Tt]/U/g;
    my $connect = $temp[4];
    $hash{$nt} = $connect;

}

foreach my $key (keys %hash)
{
    print "$key\t$hash{$nt}\n";
}

[download]
300     dG = -62.54   [initially -70.70] gi178893_M23263_rna_300-1 
1    G    0    2    0    1
2    A    1    3    0    2
3    A    2    4    0    3
4    U    3    5    0    4
5    U    4    6    0    5
6    C    5    7    0    6
7    C    6    8    0    7
8    G    7    9    34    8
9    G    8    10    33    9
10    C    9    11    0    10
11    G    10    12    32    11
12    G    11    13    31    12
13    A    12    14    0    13
14    G    13    15    30    14
15    A    14    16    29    15
16    G    15    17    28    16
17    A    16    18    27    17
18    A    17    19    26    18
19    C    18    20    25    19

[download]

I really appreciate your help. Regards

In reply to Key value pair in hash inside while loop by newtoperlprog

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